DE3887126D1 - METHODS TO ACCESS AN OPTICAL RECORDING TRACK. - Google Patents
METHODS TO ACCESS AN OPTICAL RECORDING TRACK.Info
- Publication number
- DE3887126D1 DE3887126D1 DE88907395T DE3887126T DE3887126D1 DE 3887126 D1 DE3887126 D1 DE 3887126D1 DE 88907395 T DE88907395 T DE 88907395T DE 3887126 T DE3887126 T DE 3887126T DE 3887126 D1 DE3887126 D1 DE 3887126D1
- Authority
- DE
- Germany
- Prior art keywords
- access
- methods
- optical recording
- recording track
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08529—Methods and circuits to control the velocity of the head as it traverses the tracks
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0953—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21599687 | 1987-08-29 | ||
JP21875487 | 1987-09-01 | ||
JP26412587 | 1987-10-20 | ||
PCT/JP1988/000844 WO1989002150A1 (en) | 1987-08-29 | 1988-08-25 | Methods of accessing an optical recording track |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3887126D1 true DE3887126D1 (en) | 1994-02-24 |
DE3887126T2 DE3887126T2 (en) | 1994-04-28 |
Family
ID=27329828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE88907395T Expired - Fee Related DE3887126T2 (en) | 1987-08-29 | 1988-08-25 | METHODS TO ACCESS AN OPTICAL RECORDING TRACK. |
Country Status (5)
Country | Link |
---|---|
US (2) | US5121370A (en) |
EP (1) | EP0332708B1 (en) |
KR (1) | KR920009196B1 (en) |
DE (1) | DE3887126T2 (en) |
WO (1) | WO1989002150A1 (en) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5303225A (en) * | 1989-10-30 | 1994-04-12 | Matsushita Electrical Industrial Co., Ltd. | Multi-layered optical disk with track and layer identification |
DE69123636T2 (en) * | 1990-05-17 | 1997-04-17 | Fujitsu Ltd | Search positioning system for disc device |
JP2656371B2 (en) * | 1990-06-26 | 1997-09-24 | 富士通株式会社 | Optical disk drive |
JP2531847B2 (en) * | 1990-09-27 | 1996-09-04 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | Optical disk drive |
JPH04254919A (en) * | 1991-02-07 | 1992-09-10 | Hitachi Ltd | Tracking controller |
US5309417A (en) * | 1991-10-09 | 1994-05-03 | Nippon Conlux Co., Ltd. | Information recording/reproducing apparatus for optical information recording medium |
US5812506A (en) * | 1992-04-10 | 1998-09-22 | Wea Manufacturing, Inc. | System and methods for measuring and correcting for overshoot in a high frequency (HF) signal generated by a compact disc player during testing of a compact disc |
US5675560A (en) * | 1994-08-22 | 1997-10-07 | Canon Kabushiki Kaisha | Information recording/reproducing apparatus with function of seeking light beam to target position, and method therefor |
US5623464A (en) * | 1994-09-29 | 1997-04-22 | Fujitsu Limited | Optical disk apparatus and seek control method |
US6320828B1 (en) * | 1998-11-10 | 2001-11-20 | Oak Technology, Inc. | Servo system having track crossing detection for an optical disk drive system |
JP2000285479A (en) * | 1999-03-31 | 2000-10-13 | Fujitsu Ltd | Information storage device |
US6339565B1 (en) * | 1999-03-31 | 2002-01-15 | Lsi Logic Corporation | Non-linear center-error generator for DVD servo control |
JP2001118366A (en) * | 1999-10-20 | 2001-04-27 | Brother Ind Ltd | Device and method for detecting discontinuous position |
US6636466B1 (en) * | 2000-10-05 | 2003-10-21 | Lite-On It Corporation | Method for track seeking of a reading head in an optic disk drive |
US6898164B2 (en) * | 2001-01-25 | 2005-05-24 | Dphi Acquisitions, Inc. | Close tracking algorithm in a digital tracking servo system |
US7522480B2 (en) | 2001-01-25 | 2009-04-21 | Dphi Acquisitions, Inc. | Digital tracking servo system with multi-track seek with an acceleration clamp |
JP3758614B2 (en) * | 2002-06-28 | 2006-03-22 | ヤマハ株式会社 | Optical disc recording apparatus and image forming method for optical disc |
JP3772136B2 (en) * | 2002-07-30 | 2006-05-10 | 株式会社東芝 | Optical disk device and access method of optical disk device |
KR100950527B1 (en) * | 2003-07-15 | 2010-03-30 | 삼성전자주식회사 | Apparatus and method for track jump concerned position of pickup |
SE528486C2 (en) * | 2004-05-24 | 2006-11-28 | Audiodev Ab | Quality testing method for optical disk e.g. compact disk, involves performing leap in radial direction of disk and simultaneously analyzing disk in off-track measurement mode to determine off-track quality parameters |
US10878646B2 (en) | 2005-12-08 | 2020-12-29 | Smartdrive Systems, Inc. | Vehicle event recorder systems |
US20070217303A1 (en) * | 2006-03-14 | 2007-09-20 | Lsi Logic Corporation | Seatbelt lens control during rough seek |
US8996240B2 (en) * | 2006-03-16 | 2015-03-31 | Smartdrive Systems, Inc. | Vehicle event recorders with integrated web server |
US8989959B2 (en) | 2006-11-07 | 2015-03-24 | Smartdrive Systems, Inc. | Vehicle operator performance history recording, scoring and reporting systems |
US8868288B2 (en) * | 2006-11-09 | 2014-10-21 | Smartdrive Systems, Inc. | Vehicle exception event management systems |
CN101488351B (en) * | 2008-01-14 | 2011-07-27 | 鸿富锦精密工业(深圳)有限公司 | Optical disc playing device and motor controlling method thereof |
US8711664B2 (en) * | 2010-06-21 | 2014-04-29 | Mediatek Inc. | Method of controlling mechanical mechanisms of optical storage apparatus for peak power/current reduction, and related optical storage apparatus and machine-readable medium |
US9728228B2 (en) | 2012-08-10 | 2017-08-08 | Smartdrive Systems, Inc. | Vehicle event playback apparatus and methods |
US9610955B2 (en) | 2013-11-11 | 2017-04-04 | Smartdrive Systems, Inc. | Vehicle fuel consumption monitor and feedback systems |
US10306125B2 (en) | 2014-10-09 | 2019-05-28 | Belkin International, Inc. | Video camera with privacy |
US9179105B1 (en) * | 2014-09-15 | 2015-11-03 | Belkin International, Inc. | Control of video camera with privacy feedback |
US11790947B1 (en) * | 2022-05-03 | 2023-10-17 | Seagate Technology Llc | Idle power saving for actuator device |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2349191A1 (en) * | 1976-04-23 | 1977-11-18 | Thomson Brandt | OPTICAL INFORMATION DISC READER INCLUDING AN AUTOMATIC INFORMATION ACCESS DEVICE |
US4375091A (en) * | 1978-06-30 | 1983-02-22 | Discovision Associates | Method and apparatus for information retrieval from an optically readable storage medium |
NL8003305A (en) * | 1980-06-06 | 1982-01-04 | Philips Nv | Apparatus for locating a desired information track. |
JPS5764337A (en) * | 1980-10-01 | 1982-04-19 | Matsushita Electric Ind Co Ltd | Track retrieval device |
US4484319A (en) * | 1980-09-19 | 1984-11-20 | Matsushita Electric Industrial Co., Ltd. | Apparatus for locating a track on disc-like optical information carriers |
JPS5755542A (en) * | 1980-09-19 | 1982-04-02 | Matsushita Electric Ind Co Ltd | Track retrieving device of optical information recorder and reproducer |
JPS58122676A (en) * | 1982-01-16 | 1983-07-21 | Sony Corp | Track jump device for disc |
US4774699A (en) * | 1981-12-21 | 1988-09-27 | Discovision Associates | Method and apparatus for positioning a read head to a selected track on a record disc |
JPS58166567A (en) * | 1982-03-26 | 1983-10-01 | Matsushita Electric Ind Co Ltd | Retrieving device of information track |
EP0098076A1 (en) * | 1982-06-14 | 1984-01-11 | Nec Corporation | Beam access apparatus for optical disc system |
NL8303046A (en) * | 1983-09-01 | 1985-04-01 | Philips Nv | DEVICE FOR READING A DISC REGISTRATION CARRIER. |
JPS6139239A (en) * | 1984-07-28 | 1986-02-25 | Sony Corp | Optical disc player |
US4740939A (en) * | 1985-05-22 | 1988-04-26 | Hitachi Ltd. | Apparatus for reproducing information recorded on a disk |
DE3520189A1 (en) * | 1985-06-05 | 1986-12-11 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | METHOD FOR JUMPING IN TRACK SEARCH PROCESSES AND CIRCUIT ARRANGEMENT FOR IMPLEMENTING THE METHOD |
JPS62125543A (en) * | 1985-11-27 | 1987-06-06 | Sony Corp | Track jump controller for optical reproducer |
DE3543568A1 (en) * | 1985-12-10 | 1987-06-11 | Thomson Brandt Gmbh | METHOD FOR SEARCHING FOR TRACKS IN A ROTATING DISK-SHAPED INFORMATION CARRIER AND CIRCUIT ARRANGEMENT FOR IMPLEMENTING THE METHOD |
JPS62170031A (en) * | 1986-01-21 | 1987-07-27 | Seiko Epson Corp | Access controller for optical disk |
US4779251A (en) * | 1987-06-12 | 1988-10-18 | Optimem | Optical disk memory system with closed loop micro-jump between adjacent tracks |
-
1988
- 1988-08-25 WO PCT/JP1988/000844 patent/WO1989002150A1/en active IP Right Grant
- 1988-08-25 DE DE88907395T patent/DE3887126T2/en not_active Expired - Fee Related
- 1988-08-25 EP EP88907395A patent/EP0332708B1/en not_active Expired - Lifetime
- 1988-08-25 KR KR1019890700766A patent/KR920009196B1/en not_active IP Right Cessation
- 1988-10-11 US US07/265,460 patent/US5121370A/en not_active Ceased
-
1996
- 1996-08-16 US US08/698,761 patent/USRE36590E/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0332708B1 (en) | 1994-01-12 |
WO1989002150A1 (en) | 1989-03-09 |
US5121370A (en) | 1992-06-09 |
EP0332708A1 (en) | 1989-09-20 |
USRE36590E (en) | 2000-02-29 |
KR920009196B1 (en) | 1992-10-14 |
DE3887126T2 (en) | 1994-04-28 |
KR890702189A (en) | 1989-12-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8365 | Fully valid after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |